Finding the Fourth Proportional to 71,186.26, 106,780.43 and 18,595.75
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Solution
The fourth proportional to 71,186.26, 106,780.43 and 18,595.75 is: 27,893.90
Step by Step Solution
- Step 1: Write the proportion equation
71,186.26 : 106,780.43 = 18,595.75 : x - Step 2: Convert to fraction form
71,186.26/106,780.43 = 18,595.75/x - Step 3: Cross multiply
71,186.26x = 106,780.43 × 18,595.75 - Step 4: Simplify right side
71,186.26x = 1,985,662,088.19 - Step 5: Solve for x
x = 1,985,662,088.19/71,186.26 - Step 6: Final answer
x = 27,893.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.